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編寫這個小域搜索應用程序,它應該順序搜索數組中的每個項目的.com,但它繼續搜索test1。即使我在搜索功能中做了一個控制檯日誌,它告訴我x的值是test2,而測試3是否需要刪除監聽器或其他東西?事件處理沒有按預期工作nodejs
我得到以下輸出
domain test1.com
Domain Name: TEST1.COM
domain test2.com
Domain Name: TEST1.COM
domain test3.com
Domain Name: TEST1.COM
app.js
var port = 43;
var net = require('net');
var host = 'whois.internic.net';
var dotCom = new net.Socket();
var c = 0;
var connections = 0;
var dotComStatus;
dotCom.setEncoding('ascii');
var searches = ['test1', 'test2', 'test3'];
search(searches.shift());
function chkconnections(z) {
if (connections <= 0) {
if (searches.length >= 1) {
process.nextTick(function() {
search(searches.shift());
});
}
}
}
function search(x) {
var q = "domain " + x + ".com\r\n";
dotCom.connect(port, host, function() {
dotCom.write(q);
console.log(q);
connections++;
});
dotCom.on('data', function(data) {
c++;
if (c == 2) {
dotComStatus = data.split('\n')[1];
dotCom.on('close', function() {
console.log(dotComStatus);
connections--;
chkconnections();
});
}
});
}